Home / 9,990.75-14,986.40-3,065.25

Finding the Fourth Proportional to 9,990.75, 14,986.40 and 3,065.25

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Solution

The fourth proportional to 9,990.75, 14,986.40 and 3,065.25 is: 4,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.75 : 14,986.40 = 3,065.25 : x
  2. Step 2: Convert to fraction form
    9,990.75/14,986.40 = 3,065.25/x
  3. Step 3: Cross multiply
    9,990.75x = 14,986.40 × 3,065.25
  4. Step 4: Simplify right side
    9,990.75x = 45,937,062.60
  5. Step 5: Solve for x
    x = 45,937,062.60/9,990.75
  6. Step 6: Final answer
    x = 4,597.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.